TM 9-2320-361-10 a. A-frame Kit. Installed on cargo and tractor trucks equipped with a front winch for loading and unloading equipment. A-frame load limit is 3,000 lb (1,362 kg). Key Item and Function 1 2 3 4 5 Tube and Leg Assemblies are attached to lifting shackle brackets and apex spreader to form an A-frame for lifting. Apex Spreader positions the A-frame and supports the sheave assembly. Sheave Assembly supports front winch cable in the lifting position. Cable Assembly is attached to A-frame and “inverted pintle hook to maintain the A-frame in a 60° angle position. Plate Assembly protects cable assembly and truck bed from wear and distortion. 2-22 2-6. SPECIAL PURPOSE KITS CONTROLS AND INDICATORS